Information Security Assurance Analyst

Portsmouth
£50000 - £55000 per annum
Permanent

Posted on Thu Jan 2026

Information Security Assurance Analyst

Up to £55,000 per annum

2x per month on site - Portsmouth

We have a brilliant opportunity to join an industry-leading utility company based in the Southeast. They are going through a period of growth, undergoing multiple digital, and tech transformations. As a UK Critical National Infrastructure provider, Information Security is an integral part of their business operation, so this role is critical to the business.

We are looking for an Information Security Assurance Analyst who will 'fly the flag' for Information Security, providing assurance to the leadership team regarding the design and operating effectiveness of IT security controls within future IT projects and implementation. You will be responsible for reviewing and identifying security control gaps in design documents, providing recommendations for amendments and mitigation.

We are looking for:

  • Strong experience of performing threat modelling exercises
  • Experience of reviewing high/low level architecture definition documents for compliance against security policies and standards
  • Knowledge of technology risk and controls including relevant tools and techniques
  • Good understanding and practical experience of Cyber Security Frameworks including NCSC CAF, NIST and ISO 27001
  • Must have at least 2 years' cyber security experience.
  • Excellent communication skills with the ability to deal with conflicting priorities.

In turn, we can offer you:

  • The opportunity to work in a highly skilled team, with exposure to OT technologies.
  • Salary sacrifice pension scheme.
  • 25 days holiday + Bank Holidays.

You will need to be eligible for SC Clearance/have an active SC Clearance to be considered for this role.

There couldn't be a more exciting time to join this organisation while they take huge steps to decarbonise their network and modernise and innovate like never before. If this sounds of interest, please apply today.

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    Advertised By:
    Genna Mills

    Genna offers five years of recruitment experience, concentrating on understanding client needs to provide highly effective placement strategies. Her approach is rooted in a deep understanding of market dynamics and candidate capabilities, which helps her deliver tailor-made solutions that benefit both clients and candidates.

    Actions speak louder than words when it comes to ED&I and we’re proud to let ours do the talking for us. TRIA have a majority female workforce from director level down and to keep building on this, we embody a commitment to keep TRIA a safe, prejudice-free environment.

    TRIA Consulting is dedicated to delivering end-to-end services that unlock potential and maximise value. Unlike traditional recruitment, we focus on providing comprehensive consultancy solutions tailored to your organisation's unique objectives.

    TEL 0117 332 7000 | POST 14th Floor, Colston Tower, Colston St, Bristol BS1 4XE